base: Rename EnvVarGetter to Environment.

chrome/plugin/plugin_main_mac.mm

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/chrome_application_mac.h"
-#include "base/env_var.h"
+#include "base/environment.h"
 #include "base/scoped_ptr.h"
 #include "base/string_util.h"
 #include "chrome/common/plugin_carbon_interpose_constants_mac.h"
 #include "chrome/plugin/plugin_interpose_util_mac.h"
 
 #if !defined(__LP64__)
 void TrimInterposeEnvironment() {
-  scoped_ptr<base::EnvVarGetter> env(base::EnvVarGetter::Create());
+  scoped_ptr<base::Environment> env(base::Environment::Create());
 
   std::string interpose_list;
   if (!env->GetEnv(plugin_interpose_strings::kDYLDInsertLibrariesKey,
                    &interpose_list)) {
     NOTREACHED() << "No interposing libraries set";
     return;
   }
 
   // The list is a :-separated list of paths. Because we append our interpose
   // library just before forking in plugin_process_host.cc, the only cases we
@@ skipping 17 matching lines @@
     NOTREACHED() << "Missing Carbon interposing library";
   }
 }
 #endif
 
 void InitializeChromeApplication() {
   [CrApplication sharedApplication];
 
   mac_plugin_interposing::SetUpCocoaInterposing();
 }